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Hex Castle Nuts
Hex Castle Nuts
Nominal Size or Basic Major Dia. of Thread
F
G
H
T
S
R
W
Runout of Bearing Surface FIR
Width Across Flats
Width Across Corners
Thickness
Unslotted Thickness and Height of Flat
Width of Slot
Radius of Filet
Dia of Cylindrical
Basic
Max
Min
Max
Min
Basic
Max
Min
Nom
Max
Min
Max
Min
+
.010
Min
Max
5/8
0.6250
3/4
0.7500
7/8
0.8750
1
1.0000
15/16
1-1/8
1-5/16
1-1/2
0.938
1.125
1.312
1.500
0.922
1.088
1.269
1.450
1.083
1.299
1.516
1.732
1.051
1.240
1.447
1.653
23/32
13/16
29/32
1
0.731
0.827
0.922
1.018
0.706
0.798
0.890
0.982
1/2
9/16
21/32
23/32
0.51
0.57
0.67
0.73
0.49
0.55
0.64
0.70
0.24
0.24
0.24
0.30
0.18
0.18
0.18
0.24
0.156
0.188
0.188
0.188
0.797
0.941
1.097
1.254
0.021
0.023
0.025
0.027
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